Internal addresses, constants for the HSC sensor. More...

Detailed Description

Internal addresses, constants for the HSC sensor.

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HSC I2C Packet Readout
#define	HSC_PRESSURE_DATA_LENGTH (2)
	Pressure is stored in the first 2 bytes of data.

#define	HSC_FULL_DATA_LENGTH (4)
	Pressure + temperature data is 4 bytes long.

#define	HSC_STATUS_MASK (0xc0)
	Bit mask for the status bits in the first byte.

#define	HSC_PRESSURE_MASK (0x3fff)
	Bit mask for the pressure data.

#define	HSC_TEMPERATURE_SHIFT (5)
	Temperature data is left adjusted within the word.

Status and error return codes
enum	{ HSC_STATUS_OK = 0x00 , HSC_STATUS_STALE_DATA = 0x40 , HSC_STATUS_COMMAND_MODE = 0x80 , HSC_STATUS_DIAGNOSTIC = 0xc0 }

Macro Definition Documentation

#define HSC_FULL_DATA_LENGTH (4)

Pressure + temperature data is 4 bytes long.

Definition at line 34 of file hsc_internals.h.

#define HSC_PRESSURE_DATA_LENGTH (2)

Pressure is stored in the first 2 bytes of data.

Definition at line 32 of file hsc_internals.h.

#define HSC_PRESSURE_MASK (0x3fff)

Bit mask for the pressure data.

Definition at line 38 of file hsc_internals.h.

#define HSC_STATUS_MASK (0xc0)

Bit mask for the status bits in the first byte.

Definition at line 36 of file hsc_internals.h.

#define HSC_TEMPERATURE_SHIFT (5)

Temperature data is left adjusted within the word.

Definition at line 40 of file hsc_internals.h.

anonymous enum

Enumerator
HSC_STATUS_STALE_DATA	stale data: data that has already been fetched since the last measurement cycle, or data fetched before the first measurement has been completed.

Definition at line 47 of file hsc_internals.h.